{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4402-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4402-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4402-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4402-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4402-8, 4-pole miniature circuit breaker, D characteristic, 2 A rated, 10 kA per EN 60898 / 35 kA per IEC 60947-2.","salesMarkdown":"## 4-pole D-curve MCB for industrial panels The Siemens SENTRON 5SY4402-8 is a 4-pole miniature circuit breaker with a D tripping characteristic, rated 2 A at AC (50/60 Hz). ## Standards and environmental compliance Material declarations confirm halogen-free and silicon-free construction, supporting clean-environment and low-corrosion panel specifications. Ambient temperature range spans -40°C to 75°C with derating curves published for 35°C through 60°C (e.g., 1.9 A at 40°C, 1.8 A at 50°C). Humidity limits apply above 55°C per the spec table.","metaTitle":"Siemens 5SY4402-8 SENTRON MCB, 4P D-curve 2A, 10/35kA","metaDescription":"Active production. 4-pole miniature circuit breaker, D characteristic, 2 A rated. Breaking capacity 10 kA (EN 60898) / 35 kA (IEC 60947-2). Halogen/silicon-free. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY4402-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 4-pole, D, 2A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"2 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","at 35 °C / rated value":"2 A","at 40 °C / rated value":"1.9 A","at 45 °C / rated value":"1.85 A","at 50 °C / rated value":"1.8 A","at 55 °C / rated value":"1.75 A","at 60 °C / rated value":"1.7 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"D","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"35 kA","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$341.20","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f8ad82f7d5a6e7f1ef38291b37175737.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=505963&mlfb=5SY4402-8"},"ai":{"faq":[{"question":"What is the physical width of the 5SY4402-8?","answer":"72 mm, which corresponds to 4 modular width units on a DIN rail."},{"question":"Is the 5SY4402-8 halogen-free?","answer":"Yes, it is halogen-free and silicon-free per the product specification."},{"question":"What is the ambient temperature range for this MCB?","answer":"Operating ambient range is -40°C to 75°C, with published derating at elevated temperatures."},{"question":"What is the IP rating?","answer":"IP20 with connected conductors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4402-8","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SY4402-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}